I used to dedicated fall weekends entirely to football. College all day Saturday and NFL all day Sunday and then Monday night.
Since I know there's zero chance the Cowboys are going to win a Superbowl I started watching fewer and fewer games about a decade ago. I started filling those Sundays with other activities from enjoyable ones to just shit that needs doing, like cleaning a lot. Eventually, 3 games dwindled to Cowboy games, then to Cowboy highlights and now.. not watching at all. My interest changed and I found something more enjoyable and interesting. Just that simple for me.
As for the Superbowl, I truly don't recall the last time I watched it. I don't drink alcohol any longer, I eat healthy, hate marketing and commercials, don't have a lot of NFL loving friends, so even if there was a party, it wouldn't offer me anything of interest and neither does next Sunday. So, if I can't find anything on the all channels I want to watch, weather is such that I can't do something outside, don't feel like cleaning or playing any games on my console, and don't have anywhere to go.. I guess I might turn on the Super Bowl.. maybe. I'm not claiming 100% I won't watch it, but it's literally on the bottom of my interest list mostly because outside of Longhorns doing well, I truly don't give a shit what happens and I'll let Surly filter out the interesting commercials I should see.